Table 2.

Mean score improvement (with 95% confidence interval) and p-value, per group, per OSATS category. CI = confidence interval. OSATS = objective structure assessment of technical skills

	Control Group		Intervention Group
OSATS category	Mean [95% CI]	P value	Mean [95% CI]	P value
Respect of tissues	0.9 [0.2, 1.5]	P = 0.008	1.2 [0.5, 1.8]	P = 0.0005
Time and Motion	0.6 [0.1, 1.2]	P = 0.02	0.7 [0.2, 1.2]	P = 0.006
Instrument Handling	0.2 [−0.3, 0.7]	P = 0.5	0.5 [0.1, 1]	P = 0.03
Knowledge of instruments	0.1 [−0.5, 0.7]	P = 0.9	0.7 [0.1, 1.3]	P = 0.02
Flow of operation	0.5 [0.03, 1.1]	P = 0.03	1.1 [0.6, 1.6]	P < 0.0001
Use of assistant	0.5 [0.09, 0.8]	P = 0.01	0.7 [0.3, 1.04]	P = 0.0004
Knowledge of procedure	0.6 [−0.07, 1.3]	P = 0.08	5.7 [3.4, 8.1]	P = 0.001